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Old Jul 7, 2009 | 08:11 PM
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peter121's Avatar
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Lightbulb Rear Differential
Do the audi a4 quattros have a rear differential?
 
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Old Jul 7, 2009 | 08:54 PM
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yes they do
 
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Old Jul 7, 2009 | 09:16 PM
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every car that has a drive axle front or rear or both has some sort of differential in that axle.
 
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Old Jul 8, 2009 | 09:27 PM
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The rear differential has to be serviced how often?
 
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Old Jul 9, 2009 | 01:24 AM
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it doesnt need to be serviced... usually seals go bad, they need to be replaced.
 
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Old Jul 9, 2009 | 12:59 PM
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it doesnt need to be serviced... usually seals go bad, they need to be replaced.
If its been more than 90-100k miles or 8 years, drain and fill all diffs.
 
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Old Jul 9, 2009 | 06:15 PM
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Originally Posted by Midniteoyl
If its been more than 90-100k miles or 8 years, drain and fill all diffs.
How much would it cost to have this done?
 
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Old Jul 9, 2009 | 09:43 PM
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Originally Posted by copper07
How much would it cost to have this done?

Kind of curios about this too, is there a DIY for the B6 manual?
 
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Old Jul 10, 2009 | 01:08 AM
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Here you go... http://www.audizine.com/forum/showthread.php?t=189117 It's very easy to do it yourself. I did mine not too long ago. I used Mobil 1 75w90 diff oil. Only cost me few dollars and maybe 15 minutes to do it.
 
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Old Jul 10, 2009 | 12:21 PM
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Great! Thanks for the info.
 
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